i have a d16y5 vtec-e anybody know what kind of a/f ratios i need to tune for with this style vtec-e. im using aem ems from an ex because they dont make one for an hx. i just set vtec to come on at 3000rpm. it runs good but need info on a/f setting

 

Honestly, if you are asking this question the AEM EMS is probably a little advanced for you to handle. I'd recommend taking your car to an AEM certified tuner in your area.

OR,

Since your setup doesn't seem heavily modified, maybe stepping down to a basic chipped ECU or Hondata setup....

 

i should have specified it has 9:1 forged pistons h beam rods and ported head. it is turbo'd and im running it as a normal vtec but since this engine only uses 1 intake valve untill 3000 rpm stock and thats what i set it for. its made to be a lean burn at lower rpms. which is fine i think since i dont hit boost till 3000 rpm anyway. tuners around here dont tune y5's there very rare to tune one i guess. at 10psi it put out 240hp to the wheels thou